Michael Shindler spent six years learning this delicate process and by August 2011 he decided to put his new skills to work by opening the world’s first Tintype portrait studio called Photobooth on Valencia street in San Francisco. Tintype was first introduced in the 1850s, over a hundred and sixty years ago. The process takes around ten minutes and is both delicate and messy. One slip-up and you’ll have to do the whole thing all over again.